Techkey Black-5.3-1 USB Bluetooth Adapter

The Techkey Black-5.3-1 is a USB Bluetooth adapter for Windows desktops, with a claimed Class 1 long-range radio and support for connecting up to five devices. The listing describes plug-and-play setup, but its Bluetooth version claims conflict, so confirm the specific version before buying.

At a glance

USB adapter intended for desktop Bluetooth connectivity.
Listing claims driver-free plug-and-play use on supported Windows versions.
Class 1 radio and an extra-long antenna are claimed, with a 500ft/150m open-area range.
Feature description claims connection to up to five Bluetooth devices at once.

Price

$12.59Save 10%

Reference price: ~~$13.99~~

Price checked: Nov 12, 2026

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Often bought together

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Pros and cons

Pros

The claimed multi-device capacity may suit a desktop setup with several Bluetooth peripherals.
Windows 11, 10, and 8.1 are named as supported systems in the feature description.
Bluetooth Low Energy and EDR support are claimed.

Cons

The listed system support excludes macOS and Linux, as well as car stereos, Xbox, PS4, and TVs.

Technical specifications

15 specifications

Identity
Brand	Techkey
Model	Black-5.3-1
Interface	USB
Color	black
Data link protocol	Bluetooth
Bluetooth version	Bluetooth 5.4

Compatibility and capacity
Compatible device	Desktop
Operating system family	Windows
Minimum required operating system	Windows 10
Operating systems listed in feature description	Only supports Windows 11/10/8.1
Maximum connected devices claimed	5 devices at the same time

Wireless performance claims
Claimed open-area transmission range	500ft/150m
Claimed data transfer rate	3 megabits_per_second

Dimensions and installation
Dimensions listed	3.74"L x 0.67"W x 4.29"H
Weight listed	0.05 kg

What to know before buying

Listing details to confirm

The listing is contradictory about Bluetooth generation: the title and most feature text say Bluetooth 5.4, while the model is Black-5.3-1 and a compatibility passage also names 5.3. Confirm the version for the selected listing. The 500ft/150m distance is an open-area claim and the listing says obstructions and wireless interference affect range. The explicit package list names an adapter and manual, while nearby wording mentions a mouse and keyboard without confirming they are included.

What’s in the box

Bluetooth adapterIncluded
User manualIncluded
KeyboardCheck selected pack
MouseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Windows desktop users adding Bluetooth connectivity for peripherals such as keyboards, mice, headsets, speakers, or printers.
Buyers who want the listing's claimed long-range connection and have an open area with limited obstructions.

Less suited to

Mac or Linux users, or anyone seeking an adapter for a TV, car stereo, Xbox, or PS4.
Buyers who need a confirmed Bluetooth version or guaranteed long-range performance through walls or interference.

Techkey Black-5.3-1 USB Bluetooth Adapter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 15,270 ratings

5 stars71%71%
4 stars12%12%
3 stars5%5%
2 stars3%3%
1 star9%9%

Aggregate customer ratings lean positive overall, but the distribution also includes a meaningful one-star segment. The ratings alone do not identify specific strengths or explain dissatisfaction, so they offer limited guidance on Bluetooth version, setup, or real-world range.

Frequently asked questions

Which operating systems does the listing say this adapter supports?

The feature description names Windows 11, 10, and 8.1. It also says the adapter is not compatible with macOS or Linux.

Does the listing confirm Bluetooth 5.4?

No. The title and most feature text claim Bluetooth 5.4, but the model is Black-5.3-1 and another passage names Bluetooth 5.3. Check the selected listing for the version.

Is 500 feet the expected range indoors?

The 500ft/150m claim is for an open area. The listing cautions that physical obstructions and wireless interference affect range.

Are a keyboard and mouse included?

The explicit package list names a Bluetooth adapter and a user manual. Other listing wording mentions a mouse and keyboard, but does not confirm they are included.